test(spim0): print on uDMA UART

examples/sysctrl/hello-sysctrl/examples/spim0.rs

@@ -7,22 +7,29 @@
 #![no_main]
 
 use core::arch::asm;
-use headsail_bsp::apb_uart::ApbUart0;
-use headsail_bsp::{pac::Sysctrl, rt::entry, sysctrl::udma::Udma};
+use headsail_bsp::{
+    pac::Sysctrl,
+    rt::entry,
+    sysctrl::{soc_ctrl, udma::Udma},
+    ufmt,
+};
+use hello_sysctrl::{print_example_name, sprintln};
 
 #[entry]
 fn main() -> ! {
+    // These lines are necessary to initialize uDMA UART prints for sprint-macro
+    soc_ctrl::periph_clk_div_set(0);
+    hello_sysctrl::UdmaUart::init();
+    print_example_name!();
+
     let sysctrl = unsafe { Sysctrl::steal() };
     let udma = Udma(sysctrl.udma());
 
     // Split uDMA into sub-drivers for each peripheral
     let udma_periphs = udma.split();
 
-    let (soc_freq, baud) = (30_000_000, 115_200);
-    let mut uart = ApbUart0::init(soc_freq, baud);
-
     let mut spim = udma_periphs.spim.enable();
-    uart.write_str("SPI enabled!\n\r");
+    sprintln!("SPI enabled!");
 
     let tx_data: [u8; 8] = [0x01, 0x42, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08];
     let rx_data: [u8; 8] = [0; 8];
@@ -32,7 +39,7 @@ fn main() -> ! {
     // Send 8 bytes
     spim.send_data(&tx_data);
     spim.write_eot_keep_cs();
-    uart.write_str("Data sent!\n\r");
+    sprintln!("Data sent!\n\r");
 
     for _ in 0..10_000 {
         unsafe { asm!("nop") }
@@ -41,7 +48,7 @@ fn main() -> ! {
     // Receive 8 bytes
     spim.receive_data(&rx_data);
     spim.write_eot();
-    uart.write_str("Data received!\n\r");
+    sprintln!("Data received!\n\r");
 
     loop {
         continue;